Buying guides

6-inch carbon filters for grow tents compared on rated CFM, carbon bed, size and warranty, plus how to match a filter to your inline fan and when to replace it.

6-inch clip fans for grow tents compared on airflow, oscillation, power, noise and controller support: AC Infinity CLOUDRAY S6, Vivosun AeroWave E6, Hurricane.

Four dehumidifiers built for grow tents compared on rated capacity, tank and drain options, controller integration and warranty, plus how to size and place one.

Three beginner deep water culture kits compared on what's in the box, reservoir size, aeration and warranty, plus the water rules that keep DWC roots healthy.

Four 4x4 grow tents compared on canvas, pole size, rated hanging load, height and warranty, from manufacturer specs. Plus how to choose the right tent size.

How many CFM your grow tent really needs once you add a carbon filter and ducting, plus 6-inch and 4-inch inline fans compared on specs and published tests.

pH meters for hydroponics compared on accuracy, calibration, probe replacement and warranty: Apera PH20, Bluelab pH PenPlus and Bluelab Combo Meter.

Seedling heat mats compared on size, wattage, temperature control and safety listings: Jump Start MT10006, a Vivosun mat with thermostat and a controller.

Grow tent thermometer hygrometers compared on rated accuracy, logging, alerts and connectivity: SensorPush HT.w, Govee H5179 and ThermoPro TP50.

Beginner hydroponic nutrients compared: General Hydroponics Flora Series, MaxiGro and Masterblend 4-18-38, with label analysis, mixing order and pH.

Three 2x4 grow tent kits compared on light output, independent PAR data, fan, tent and what's included, so you know which actually lights the whole tent.

Spider Farmer, AC Infinity and Vivosun 4x4 grow tent kits compared item by item: light wattage, fan, tent frame, controller, and what you still have to buy.

Curing containers and 2-way humidity packs for cannabis compared from maker specs: Vivi (ex-Boveda), Integra Boost, CVault and Grove Bags TerpLoc.

Five LED grow lights for a 4x4 tent compared on published PAR measurements, manufacturer specs and owner feedback. What each number means and which to buy.

Vivosun vs AC Infinity compared on published fan specs and power tests, tent frames, kit contents, controllers and warranty terms, so you can pick an ecosystem.

Mars Hydro vs Spider Farmer compared on published specs, independent PAR tests, warranty terms and smart controls, at the 2x4 and 4x4 tent sizes.

Spider Farmer vs AC Infinity compared from published specs, independent light tests and warranty terms: lights, smart controllers, tents and support.

How to set up a grow tent step by step: frame, light-leak check, light hanging, carbon filter and fan placement, passive intake, sensors and a 24-hour dry run.